Korenix JetNet7714G-M12 is a Layer-3 routing Switch with 10 ports Fast Ethernet M12-D, 4 ports Gigabit Ethernet M12-A interfaces, and the Fast Ethernet also embedded 8 ports PSE for PoE application. The system supports wide range power input to compliance most of modern train, and secure the passengers'''' safety with isolated electrical power system design. The system also design with ingress protect grade 30 to offer anti-dust, water-proof, anti-vibration/shock for railcars and MRT trains.